Thyroid Abs (Thyroglobulin + Thyroid Peroxidase Abs) Test

This blood test measures two key thyroid-related autoantibodies—Thyroglobulin Antibodies (TgAb) and Thyroid Peroxidase Antibodies (TPOAb)—to help evaluate autoimmune thyroid disorders. These antibodies are produced by the immune system when it mistakenly targets components of the thyroid gland.